The Block,tackle, cataloged under National Stock Number 3940-00-189-9599, is classified within Federal Supply Class 3940 (Blocks, Tackle, Rigging, and Slings) of the Materials Handling Equipment group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3940-00-189-9599 |
| Item Name | Block,tackle |
| FSC / FSG | 3940 / 39 — Blocks, Tackle, Rigging, and Slings |
| Status | ACTIVE |
| Maximum Tackle Diameter Accommodated | 0.812 INCHES IN |
| Load Rating | 3750.0 POUNDS MAXIMUM LBS |
| Sheave Outside Diameter | 4.500 INCHES NOMINAL IN |
| Tackle Accommodated Type | FIBROUS ROPE |
| Center Pin Diameter | 0.562 INCHES NOMINAL IN |
| Style Designator | OVAL PATTERN |
| Shell Length | 7.000 INCHES NOMINAL IN |
| Bearing Type | ROLLER |
| Surface Treatment | PAINT SHELL |
| Sheave Quantity | 2 |
| Material | STEEL SHEAVE |
| Material | WOOD SHELL |
| Material | STEEL CENTER PIN |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY EXTRA LONG REFERENCE NUMBER |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| S1801-860396PC1T07-9T016-18-24-- | 3/1 Design control — primary reference U.S. Government activity |
NSN 3940-00-189-9599 is a Block,tackle, classified under FSC 3940, Blocks, Tackle, Rigging, and Slings. Status: active.
Key specifications for 3940-00-189-9599: Maximum Tackle Diameter Accommodated: 0.812 INCHES IN; Load Rating: 3750.0 POUNDS MAXIMUM LBS; Sheave Outside Diameter: 4.500 INCHES NOMINAL IN; Tackle Accommodated Type: FIBROUS ROPE. 14 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.